How water gets harden ?
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The simple definition of water hardness is the amount of dissolved calcium and magnesium in the water. Hard water is high in dissolved minerals, both calcium and magnesium. ... When hard water isheated, such as in a home waterheater, solid deposits of calcium carbonate can form
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The hardness of water is due to the presence of bicarbonates, chlorides and sulphates of magnesium and calcium.
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